> ## Documentation Index
> Fetch the complete documentation index at: https://fireworks.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# How does billing and credit usage work?

<Note>
  Contracted customers may have the option to move to post-paid billing. [Contact our sales team](https://fireworks.ai/company/contact-us) to discuss your options.
</Note>

Fireworks operates on a **pre-paid credits** billing system. You purchase credits to use the platform:

* Add a valid payment method and billing address, then purchase credits.
* Usage across serverless, on-demand deployments, and fine-tuning deducts from your credit balance.
* If your balance reaches zero and auto top-up is not enabled, usage pauses until you add credits.
* You can configure auto top-up and a monthly budget cap in the billing dashboard.

<Note>
  Enterprise accounts do not have the same self-serve limits. See [Enterprise quotas](/faq/enterprise/service/quotas) for more information.
</Note>

<Tip>
  For details on spend limits, budget caps, and quota controls, see our [Account quotas guide](/guides/quotas_usage/account-quotas#view-and-adjust-your-spend-limit).
</Tip>